Cloth-cutter



. J. GOLDFARB AND B. SACKS.

CLOTH CUTTER.

APPLICATION FILED NOV. 7, I919.

Patented J 11116 1, 1920. I 2 SHEETS-SHEET I- 22 INVENTORS 44 1%,, x 4'070 75 aevwam 0X3 ATTORNEY N. J. GOLDFARB AND B. SACKS.

CLOTH CUTTER.

APPLICATION FILED NOV- 7,

Patented J me 1, 1920.

2 SHEETSSHEET 2.

ATTORNEY UNITED STATES PATENT OFFICE.

NATHAN J. GOLDFARB, F BROOKLYN, AND BERNARD SACKS, OF NEW YORK, N. Y.

CLOTH-CUTTER.

Specification of Letters Patent.

Patented June 1, 1920.

Application filed November 7, 1919. Serial No. 336,508.

To aZZ whom it may concern..-

Be it known that we, NATHAN J. GroLD- raun, a citizen of the UnitedStates, and a resident of the borough of Brooklyn, county of Kings, cityand State of New ork, and BERNARD SAcKs, a citizen of the United States,and a resident of the borough of the Bronx, county of the Bronx, cityand State of New York, have invented certain new and useful Improvementsin Cloth-Gutters, of which the following is a specification.

The present invention relates to improve ments in cloth cutters, andparticularly such cutters having a rotary cutting blade adapted torotate in a vertical plane and out through a stack of cloth. An objectof the invention is to provide in connection with the cutting blade, apivoted foot embracing the blade and over which the cloth moves as it iscut, and means for swinging the foot upwardly at the end of the cut,raising the stack of cloth therewith so that the lowermost layer ofcloth will be cut to the same extent as the upper layers, and whichwould not be the case if the cloth remained flat, as the end of the outwould have the curvature of the circular cutting blade.

Other objects are to provide improved operating means for lifting thefoot, which may be conveniently operated by the hand guiding the cutter,and means cooperating therewith to lift the guard normally protectingthe edge of the cutting blade, so as to make room for the cloth as it islifted. i further object is to provide slot means in the footeinbracing'the cutting blade which will normally provide a support forthe cloth close to and in front of the cutting edge, but which will atthe same time permit the foot to be raised without interference with theblade, and we further propose to provide such means which may beadjusted relatively to the cutting edge so that as the cutting edge isworn away by sharpening and wear, proper relation between it and thefoot may be maintained.

Vi ith these and other objects in view, embodiments of our invention areshown in the accompanying drawings, and these embodiments will behereinafter more fully described with reference thereto, and theinvention will be finally pointed out in the claims. I

In the accompanying drawings,

Figure 1 is a front elevation of a cloth cutter according to oneembodiment of our invention Fig. 2 is a horizontal sectional view alongthe line 2-2 of Fig. 1;

Fig. 3 is a horizontal sectional view along the line 3-3 of Fig. 1;

Fig. 4; is a side elevation partly in section and with parts brokenaway;

Fig. 5 is a transverse vertical sectional View through the line 55 ofFig. 1;

Fig. 6 is a transverse vertical sectional view through the base, withparts broken away and taken along the line 66 of Fig. 1;

Fig. 7 is a view similar to Fig. 3 and with parts broken away, of amodified form of construction;

Fig. 8 is a front elevation of a further modified form of construction,with parts broken away;

Fig. 8 is a detail view partly in section of certain portions of theform shown in Fig. 8; and b Fig. 9 shows a modified form of foot andase.

Similar reference characters indicate corresponding parts throughout theseveral figures of the drawings.

Referring to the drawings, the base 10 is provided withan uprightsupport 11 having rotatably mounted thereon at 12, the circular cuttingblade 13 adapted to rotate in a vertical plane, the cutting edge of theblade extending at its lower portion into a slot 14 in the base, theupright support 11 being provided with a circumferential flange 15extending over the edge of the blade at one side, while at its otherside it is spaced from the edge as at 1.6. A beveled gear 17 is provided at the rear side of the cutting blade and is engaged by a pinion18 provided on the endof a vertical shaft 19 journaled in an enlargement20 of the support, the shaft being connected to and rotated by thearmature 21 of a motor 22 mounted upon a circular flat portion 23 at theupper end of the enlarged portion 20 of the support 11. A horizontallydisposed handle 24 is connected to the support to guide the movement ofthe cutter.

The base is hollow at its under side and is beveled at its side and endsso as to guide it'readily beneath the cloth.

At the under side of the portion 23, there are provided a pair of spacedlugs and 26 upon which is hingedly supported a plate 27, a shaft 28extending through upstanding ears 29 and 30 on the plate and through thelugs 25 and 26, a coil spring 28" being disposed on the shaft andnormally holding the plate in its lowered position. An arcuate guardmember 31 having a deflector end 32 and a flange 83 extending over theupper part of the forward portion of the cutting edge is secured to theplate 27 by means of a bolt and nut Psi, and circuniferentiall y adjustable through a slot 35.

A pair of rotary beveled grinders 36 and 37 are mounted upon a bracket38 pivotally supported on a lug 39 of the support 11 and provided with adownwardly extending crank arm l-O pivotally connected at one end of alink e1, said link being pivotally connected at its other end to aswivel pin 42 provided in the angle of an elbow lever 43 pivotallymounted upon a post lat depending from the portion 23 so that byswinging the lever inwardly, the grinders will be lowered intoengagement with the cutting blade. A spring 43 extending between thelever 43, and a pin d3 o'n the support 20, normally holds the grindersin raised position.

Upon the plate 2'? below the shaft 28 and extending rearwardly, there isprovided an arm 45 provided at its end with a pin 46 slidably'engagingthe slot 4;? of a link {l8 pivotally connected at one end to a svivelpin 49 provided in the lever 43 and adapted as the lever is swunginwardly, to simultaneously lift the plate 27 and the guard so that thecutting edge of the blade will be free to be engaged by the grinders.

A foot member 51 has its butt portion 52 disposed in a cut-out 53 of thebase and engaged by a transverse pin 54, to form a hinge about which thefoot may be swung; upwardly. The foot is beveled at its ends as at and56, the beveled portion. being of rounded contour and extending to thesurface of the base. the hinge portion in front of the portion 55 beingflush with the base. so that the cloth will ride freely from the basealong the foot nieniber. The foot member may be longer so that it willnot rise at as acute an angle as illustrated. The foot is provided with.a slot 5? cmbracing the cuttingblade. In the lowered position of thefoot, the slot extends for some distance in front of the ci'itting edgeintothe space there extends a filler piece 58 extending upwardly fromthe under side of the base through aslot 59, the base 60 of the fillerpiece being; disposed in a groove 61 and s'i'ipp'ort'ed at its underside by a plate 62 secured to the base 10 by means of crews 62. Theportion of the filler piece eftending above the 'base plate 1.0 isprovided with a flanged portion 58 extending beyond the slot at one sideand engag" 1;: the up ier surface of the base. At the side of the platethe filler piece will be moved toward or away from the edge of thecutting blade so as to regulate the distance between the said piece andthe euttinpfedge. the tiller piece constituting in the lowered positionof the foot plate, a base for the slot 5?.

At the under side of the base, there is slidablymounted in guides and'71, a rod '72, and connected at one end by a link T3 to the under sideof the foot plate, the link being disposed in a, slot 'T l of the baseplate. At its other end, the rod 72 is connected by av knuckle joint 75with a laterally swinging arm. 76 provided at the lower end of a vertit-ally disposed shaft 77. the said shaft being journaled in a passage75% provided therefor in the siu'n'iort l1, and bent outwardly at itsupper end as at 79 and rearwardly into a handle portion 80. By swingingthe handle, the rod 72 will be shifted forwardly through the turningmovement of the arm 76 thereby lifting the foot plate as shown in dottedlines in Fig. l. A spring 76 extending between the arm 76, and a pin Y6"at "the under side of the base plate 10 normally retains the foot platein lowered position. The slot 57 of the foot plate extend ing'considerably in front of the cutting edge of the blade, it will notinterfere with the said. edoge during the raising: action,

while the filler piece provides a support for the cloth close to and infront of the cutting edge so that a clean cut will result.

In order to rise the guard at the same time that the foot plate islifted. without lowering the grinder, a finger is provided on the shaft7'? above the cutting blade, and en qaye the inner side of the plate 27and which when the shaft 77 is rotated, will force said plate and theguard carried thereby upwardly so that the end of the guard will. notinterfere with the cloth as it is raised by the foot plate.

The slotted connection of the link 48 of the lever 4:8 with the plate27, permits of independent raising movement of the said plate byoperation of. either the grinders or the foot plate.

In Fig. 7. we have illustrated a. modified formof construction in whichthe handle 80 for operating the foot plate is connected to the end ofthe lever engaging the pin. 8'

being bent as at 85 so as to press inwardly upon the handle 43. Themovement of the handle 80 is such that it will not operate the handle 43sufliciently to engage the grinders with the cutting blade, but willraise the guard out of the way of the cloth as it is raised by the footplate. The handle 43 may be operated without operatmg the handle 80.

In Fig. 8, we have shown a modified form of mechanism for raising thefoot plate, the rod 72 being connected at its end to a crank lever 86pivotally mounted on the support 11 at87 and connected at its short armto one end of a vertically movable rod 88 connected at its other end tothe end of a handle lever 89 pivotally mounted at 90 on the handle 24 toswing in a vertical plane. By pressing the handle lever 89, the rod 72will be moved inwardly and the foot plate raised. A spring 91 extendingbetween the crank lever 86 and the pin 92 on the base plate, normallyholds the foot plate in lowered position. The rod 88 is connected to theguard plate 27 bymeans of a link 93 so that as the rod 88 is raised, theguard plate will also be raised.

In Fig. 9 we have illustrated a modified form of foot plate 94 providedat its under side with a lug 95 movable in a slot 96 of the base plate1.0 and engaged by an elongated screw 97 mounted in bearing lugs 98 and99, being provided at its outer end with a grooved head 100 disposed ina cut-out 101 in the base 10, and adapted to be engaged by a screwdriver, and fixed against longitudinal movement by means of a collar102. By turning the screw, the slot 103 of the base plate may beadjusted as desired toward or away from the cutting edge.

With our improvements, a cloth cutter is provided in which the end ofthe out in the cloth may be made of equal extent throughout its depthand in which the support of the cloth close to the blade may beaccurately regulated so as to always cause the blade to make a cleancut. The device is of simple construction and may be operated withfacility.

lVe have illustrated and described preferred and satisfactoryembodiments of our invention, but it is obvious that changes may be madetherein within the spirit and scope thereof, as defined in the appendedclaims.

We claim: 1. In a cloth cutter, a rotary cutting blade adapted to rotatein a vertical plane, a guard extending over the edge of said blade, alongitudinal hinge for said guard, said guard adapted to be raised andlowered, a horizontally disposed foot plate provided with a slotembracing said blade at its lower portion and over which the material tobe cut is adapted to be moved, the end of said guard being disposed inspaced relation to said foot plate, means adapted to swing said footupwardly into an inclined position, and means cooperatively connectingsaid last named means with said guard and adapted to raise said guardsimultaneously with the raising of said foot plate to maintain asubstantially constant spaced relation between said foot plate and saidguard to permit the free passing of the material therebetween.

2. In a cloth cutter, a rotary cutting blade adapted to rotate in avertical plane, a guard extending over the edge of said blade andadapted to be raised and lowered, grinder means adapted to be moved\into and out of engagement with said blade to sharpen it, means formoving said grinder means, means coiiperatively connecting said lastnamed means and said guard and adapted to lift said guard simultaneouslywith the movement into blade engaging position of said grinder means, ahorizontally disposed foot plate provided with a slot embracing saidblade at its lower portion and over which the material to be cut isadapted to be moved, means adapted to swing said foot member upwardlyinto an inclined position, and means cooperatively associating said lastnamed means with said guard and adapted to raise said guardsimultaneously with the raising of said foot plate.

3. In a cloth cutter, a rotary cutting blade adapted to rotate in avertical plane, a guard extending over the edge of said blade andadapted to be raised and lowered, grinder means adapted to be moved intoand out of engagement with said blade to sharpen it, means for movingsaid grinder means, means cooperatively connecting said last named meansand said guard and adapted to lift said guard simultaneously with themovement into blade engaging position of said grinder means, ahorizontally disposed foot plate provided with a slot embracing saidblade at its lower portion and over which the material to be cut isadapted to be moved, means adapted to swing said foot member upwardlyinto an inclined posi tion, and means cooperatively associating saidlast named means with said guard and adapted to raise said guardsimultaneously with the raising of said foot plate, said guard adaptedto be raised by said means for operating said grinder meansindependently of the operation of said means for operating said footplate.

4. In a cloth cutter, a base plate, a rotary cutting blade supportedabove said base plate and adapted to rotate in a vertical plane, ahorizontally disposed foot plate base of said foot plate, a horizontallyslidable rod connected to said link member, and means connected to saidrod adapted to be actuated by the operator to cause sliding movement ofsaid and thereby raise and lower said foot plate, said link memberadapted to support said foot plate in raised position.

5. In a cloth cutter, a base plate, a rotary cutting blade adapted torotate in a vertical plane. a horizontally disposed foot plate providedwith a slot embracing said blade at its lower portion and over which thematerial to be cut is adapted to be moved, a rotatable shaft ournaledupon said base plate fixed against longitudinal movement and having ascrew threaded portion, means associated with said base plate providedwith a threaded passage engaged by said threaded portion of said shaft,said means adapted to be moved by the turning of said screw and adaptedto regulate the distance between the base of the slot and the cuttingedge of said blade.

(5. In a cloth cutter, a rotary circular cutting blade adapted to rotatein a vertical plane, a horizontally disposed foot plate provided with aslot embracing said blade at its lower portion and over which thematerial to be cut is adapted to be moved, said slot extendingsubstantially in front of the cutting edge of said blade, a fillermember disposed in the opening of said slot in front of said cuttingblade, said filler member forming a base for said slot relatively closeto said cutting blade, and means adapted to adjust said filler membertoward or away from the cutting edge of said blade.

7. In a cloth cutter, a base plate, a cutting blade adapted to rotate ina vertical plane, a horizontally disposed foot plate pivotally mountedon said base plate and provided with a slot embracing said blade at itslower portion and over which the material to be cut is adapted to bemoved, said slot extending substantially in front of the cutting edge ofsaid blade, a filler member mounted on said base plate and disposed inthe open ing of said slot in front of said cutting blade, means adaptedto adjust said filler member toward and away from the cutting edge ofsaid blade, said filler member forming a base for said slot, relativelyclose to said cutting blade, and means adapted to swing said foot plateupwardly into inclined position away from said filler member, said slotbeing free from contact with said cutting blade in said raised position.

8. In a cloth cutter, a base plate, a cir oular cutting blade adapted torotate in a vertical plane, a horizontally disposed foot slate pivotallymounted on said base plate and provided with a slot embracing said bladeat its lower portion and over which the material to be cut is adapted tobe moved, said slot extending substantially in front of the cutting edgeof said blade, a filler member mounted on said base plate and disposedin the opening of said slot in front of said cutting blade, said fillermember forming a base for said slot relatively close to said cuttingblade, and means adapted to swing said foot plate upwardly into inclinedposition away from said. filler member, said slot being free fromcontact with said cutting blade in said raised position.

9. In a cloth cutter, a circular cutting blade adapted to rotate in avertical plane, a horizontally disposed foot plate having a fixed pivoton said base plate and provided with a slot embracing said blade at itslower portion and over which the material to be out is adapted to bemoved, said slot extending substantially in front of the cutting edge ofsaid blade, in the lowered position of said foot plate, and meansadapted to swing said foot plate upwardly into inclined position, saidslot being relatively close to said cutting edge, and free from contacttherewith in the raised position of said foot.

In testimony that we claim the foregoing as our invention, we havesigned our names hereunder.

NATHAN J. GOLDFARB. BERNARD SACKS.

